/*
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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/*
 *
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 *
 * Copyright (c) 2004 World Wide Web Consortium,
 *
 * (Massachusetts Institute of Technology, European Research Consortium for
 * Informatics and Mathematics, Keio University). All Rights Reserved. This
 * work is distributed under the W3C(r) Software License [1] in the hope that
 * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
 */

package org.w3c.dom;

/**
 * The <code>NodeList</code> interface provides the abstraction of an ordered collection of nodes,
 * without defining or constraining how this collection is implemented. <code>NodeList</code>
 * objects in the DOM are live. <p>The items in the <code>NodeList</code> are accessible via an
 * integral index, starting from 0. <p>See also the <a href='http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407'>Document
 * Object Model (DOM) Level 3 Core Specification</a>.
 */
public interface NodeList {

  /**
   * Returns the <code>index</code>th item in the collection. If
   * <code>index</code> is greater than or equal to the number of nodes in
   * the list, this returns <code>null</code>.
   *
   * @param index Index into the collection.
   * @return The node at the <code>index</code>th position in the <code>NodeList</code>, or
   * <code>null</code> if that is not a valid index.
   */
  public Node item(int index);

  /**
   * The number of nodes in the list. The range of valid child node indices
   * is 0 to <code>length-1</code> inclusive.
   */
  public int getLength();

}
